Which of the following statements BEST describes photosynthesis? Photosynthesis uses light energy to convert glucose and carbon dioxide to oxygen and water.
Photosynthesis uses light energy to convert carbon dioxide and oxygen to glucose and water.
Photosynthesis uses light energy to convert carbon dioxide and water to glucose and oxygen.
Photosynthesis uses light energy to convert glucose and oxygen to carbon dioxide and water.

you can get banned on this website if you post your quizzes here. . . .

littering streams           is the answer

well, that's easy; the answer's c, "it reduces contamination of the water and substrate of the estuary."

enzyme active site and substrate specificity

enzymes bind with chemical reactants called substrates. there may be one or more substrates for each type of enzyme, depending on the particular chemical reaction. in some reactions, a single-reactant substrate is broken down into multiple products